I'm very happy this banner won. Not only is it adorable, but the style in which it is painted gives it such warm overtones as to convey the larger feeling of the season of fall, rather than the narrow focus and convention of Halloween.
Congratulations on the win, you definitely had my vote! I love the subtle adorability of yours, it's relevant within the context of the show and the community. The concept is conveyed simply and effectively, the image as a whole is mindfully composed as well. Not to mention that you've done a nice job with the painting, your lighting is interesting and you've got good contrast; nothing's really awkwardly obscured.
So yeah, I'm gonna have to disagree with a few people on here and EqD. You definitely didn't win merely because you drew Derpy; you won because you know what you're doing, you deserve it.
Congrats! I was torn between yours and the Twilight's Delivery Service banner (I eventually voted for the latter to give it some support, since you had such a strong lead), but you definitely earned the win!
I voted for you! I love the originality you bring to your banner, it is immensely refreshing to see some off-model non-vector pony art. Your color choice also brings a sense of warmth that is simply not present in the cold world of vector graphics.